tap roots
fibrous roots
adventitious roots
nodular roots
C. adventitious roots
it lacks chlorophyll.
it stores food.
it has nodes and internodes.
it has xylem and vessels.
A - Zone of elongation, B - Zone of meiosis, C - Zone of mitosis.
A - Zone of maturation, B - Zone of meristematic activity, C - Zone of elongation.
A - Zone of mitosis, B - Zone of elongation, C - Zone of root cap.
A - Region of maturation, B - Region of elongation, C - Zone of meristematic activity.
the vegetation which is found in marshy and saline lake.
the vegetation which found in saline soil.
xerophytic condition.
hydrophytic condition.
(i) and (ii) are correct but (iii) and (iv) are wrong.
(ii) and (iii) are correct but (i) and (iv) are wrong.
(ii) and (iv) are correct but (i) and (iii) are wrong.
(i) and (iii) are correct but (ii) and (iv) are wrong.
testa
tegmen
hilum
micropyle
5 and 6
1, 2 and 6
1, 2, 3 and 4
2, 4, 5 and 6
A - Gynoecium, B - Megasporophyll, C - Ovule, D - Thalamus
A - Gynoecium, B - Stamen, C - Seed, D - Thalamus
A - Microsporophyll, B - Stamen, C - Ovule, D - Thalamus
A - Gynoecium, B - Stamen, C - Ovule, D - Thalamus
soil
air
water
light
groundnut
rice
sugarcane
wheat
(Position of floral parts on thalamus) | (Represented in) |
---|---|
A. Hypogynous | I. Ray florets of sunflower |
B. Perigynous | II. Brinjal |
C Epigynous | III Peach |
A II, B I, C III
A I, B II, C III
A III, B II, C I
A II, B III, C I
Tegmen
Scutellum
Hyaline layer
Aleurone layer
dispersal of seeds.
formation of more fruits.
formation of pollen grains.
dispersal of pollens.
Tap root system, compound leaves and raceme inflorescence.
Flowers actinomorphic, twisted aestivation and gamopetalous.
Stamens 10, introrse, basifixed, dithecous.
Monocarpellary, ovary superior and bent stigma.
absorption of water and minerals from the soil
storing reserve food material
synthesis of plant growth regulators
All of the above
(ii) and (iv) are correct but (i) and (iii) are incorrect.
(i) and (iii) are correct but (ii) and (iv) are incorrect.
(i) and (iv) are correct but (ii) and (iii) are incorrect.
(ii), (iii) and (iv) are correct but (i) is incorrect.
It is the female reproductive part of the flower.
It is composed of stamens.
Stigma is usually at the tip of the style and is the receptive surface for pollen grains.
Each ovary bears one or more ovules attached to a flattened, cushion like placenta.
tap roots
fibrous roots
adventitious roots
nodular roots
Column I | Column II |
---|---|
A. Placentation | (i) Arrangement of flowers on the rachis |
B. Aestivation | (ii) Modified shoot for sexual reproduction |
C. Inflorescence | (iii) Arrangement of various whorls in the bud |
D. Flower | (iv) Arrangement of ovules within an ovary |
A - (i), B - (ii), C - (iii), D - (iv)
A - (iii), B - (i), C - (ii), D - (iv)
A - (iii), B - (i), C - (iv), D - (ii)
A - (iv), B - (iii), C - (i), D - (ii)
X - Scutellum, Y - Embryo, Z - Radicle
X - Embryo, Y - Scutellum, Z - Radicle
X - Scutellum, Y - Radicle, Z - Embryo
X - Radicle, Y - Embryo, Z - Scutellum
Mint and jasmine
Banana and pineapple
Grass and stawberry
Pistia and Eichhornia
Calyx is the outermost whorl of the flower and are called sepals.
Sepals are green, leaf like and protect the flower in the bud stage.
The calyx may be gamosepalous (sepals free) or polysepalous (sepals united).
Both (a) and (b)
aestivation
placentation
position of gynoecium
adhesion of stamen
A - Endosperm, B - Embryo, C - Scutellum, D - Coleorhiza, E - Coleoptile
A- Embryo, B - Endosperm, C - Scutellum, D - Coleoptile, E - Coleorhiza
A - Endosperm, B - Embryo, C - Scutellum, D - Coleoptile, E - Coleorhiza
A - Embryo, B - Endosperm, C - Scutellum, D - Coleorhiza, E - Coleoptile
Four
Five
Six
Three
Imbricate aestivation is found in papilionaceous family.
Generally sepals are green, leaf like and protect the flowers in the bud stage.
In cymose type of inflorescence, the main axis terminates in a flower, hence is limitless in growth.
In axile placentation ovary is one chambered but it becomes two cambered due to formation of the false septum.
Hydrilla and Pistia
Eichhornia and Hydrilla
Pistia and Eichhornia
Pistia and Vallisneria
Storage
Reproduction
Photosynthesis
Protection
region of maturation.
region of meristematic activity.
region of elongation.
none of the above.
(i) and (iv)
(i), (iii) and (iv)
(iii) and (iv)
(ii) and (iii)
root cap
maturation zone
meristematic zone
zone of elongation